Text Tools

Regex testing, diff viewers, case conversion, slug generation, word count, and other text utilities.

Regex testing, diff viewers, case conversion, slug generation, word count, and other text utilities. DevToolDock groups these utilities so you can discover the right free online developer tool without hunting through unrelated pages. Each tool opens instantly in your browser, which makes this category useful when you are debugging a production issue, preparing documentation, or validating data before it reaches your API gateway. You will find 14 tools listed on this page; every card links directly to a dedicated page with its own instructions, FAQs, and related utilities so crawlers and users can move through a clear internal linking structure. That structure mirrors how engineering teams work in practice: start from a category (for example JSON or encoding), pick a focused utility, then jump to adjacent tools when your task expands. Because many workflows combine multiple steps—format JSON, diff two payloads, then encode a string for transport—category hubs reduce “discovered but not indexed” problems by giving search engines more context and more paths into your most important pages. Bookmark this category if you return to these tasks weekly, and use the sitewide directories under Tools and All Tools when you need cross-category discovery. For AI-assisted workflows, pair classic utilities with the AI tools section; for long-form guidance, see the blog. Together, categories, tools, and articles help you build repeatable, fast routines without installing desktop software.

Regex Tester

Test regular expressions and highlight matches.

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Regex Generator

Generate regular expressions from common patterns.

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Regex Explainer

Explain regular expressions in plain language.

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Text Diff Checker

Compare two texts and see differences.

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Remove Duplicate Lines

Remove duplicate lines from text.

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Sort Text Lines

Sort lines of text alphabetically.

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Word Counter

Count words, characters, and lines.

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Case Converter

Convert text to camelCase, snake_case, kebab-case, and more.

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Slug Generator

Generate URL-friendly slugs from text.

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Random String Generator

Generate random strings with configurable charset.

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Lorem Ipsum Generator

Generate placeholder lorem ipsum text.

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JSON Diff Viewer

Compare two JSON objects and show differences.

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Text Reverser

Reverse text by characters or by lines.

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Random Text Generator

Generate random words/sentences for test data.

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